US$14.95

Inertia Balance, Simple
[100110]

Demonstrates the principle of inertia with this simple and economical apparatus. Comprises an aluminum rod mounted on a plastic base. Rod has a recessed top to take the spherical ball. When striker is pulled back and released the card square is propelled, but the ball unaffected and falls into the recess. Supplied complete with spherical ball and card square.
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